65650572000 has 576 divisors, whose sum is σ = 252850066560. Its totient is φ = 16035840000.

The previous prime is 65650571993. The next prime is 65650572011. The reversal of 65650572000 is 27505656.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70667536 + ... + 70668464.

It is an arithmetic number, because the mean of its divisors is an integer number (438975810).

Almost surely, 2^65650572000 is an apocalyptic number.

65650572000 is a gapful number since it is divisible by the number (60) 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 65650572000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126425033280).

65650572000 is an abundant number, since it is smaller than the sum of its proper divisors (187199494560).

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

65650572000 is a wasteful number, since it uses less digits than its factorization.

65650572000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 65650572000 in words is "sixty-five billion, six hundred fifty million, five hundred seventy-two thousand".