30231565472640 has 512 divisors, whose sum is σ = 113709454295040. Its totient is φ = 6685541867520.

The previous prime is 30231565472629. The next prime is 30231565472659. The reversal of 30231565472640 is 4627456513203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 30231565472640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2727736539 + ... + 2727747621.

It is an arithmetic number, because the mean of its divisors is an integer number (222088777920).

Almost surely, 2^{30231565472640} is an apocalyptic number.

30231565472640 is a gapful number since it is divisible by the number (30) 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 30231565472640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56854727147520).

30231565472640 is an abundant number, since it is smaller than the sum of its proper divisors (83477888822400).

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

30231565472640 is a wasteful number, since it uses less digits than its factorization.

30231565472640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17690 (or 17678 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 30231565472640 in words is "thirty trillion, two hundred thirty-one billion, five hundred sixty-five million, four hundred seventy-two thousand, six hundred forty".