72264192000 has 1664 divisors, whose sum is σ = 329732702208. Its totient is φ = 13565952000.

The previous prime is 72264191999. The next prime is 72264192001. The reversal of 72264192000 is 29146227.

It is an interprime number because it is at equal distance from previous prime (72264191999) and next prime (72264192001).

It is a tau number, because it is divible by the number of its divisors (1664).

It is a super-2 number, since 2×72264192000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72264192001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1537535977 + ... + 1537536023.

It is an arithmetic number, because the mean of its divisors is an integer number (198156672).

Almost surely, 2^72264192000 is an apocalyptic number.

72264192000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72264192000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164866351104).

72264192000 is an abundant number, since it is smaller than the sum of its proper divisors (257468510208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72264192000 is a wasteful number, since it uses less digits than its factorization.

72264192000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 72264192000 in words is "seventy-two billion, two hundred sixty-four million, one hundred ninety-two thousand".