97523158920 has 384 divisors, whose sum is σ = 332314012800. Its totient is φ = 22864343040.

The previous prime is 97523158913. The next prime is 97523158969. The reversal of 97523158920 is 2985132579.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68054524 + ... + 68055956.

It is an arithmetic number, because the mean of its divisors is an integer number (865401075).

Almost surely, 2^97523158920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97523158920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166157006400).

97523158920 is an abundant number, since it is smaller than the sum of its proper divisors (234790853880).

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

97523158920 is a wasteful number, since it uses less digits than its factorization.

97523158920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 97523158920 in words is "ninety-seven billion, five hundred twenty-three million, one hundred fifty-eight thousand, nine hundred twenty".