97156091415 has 32 divisors (see below), whose sum is σ = 161035517952. Its totient is φ = 49966560000.

The previous prime is 97156091411. The next prime is 97156091429. The reversal of 97156091415 is 51419065179.

It is not a de Polignac number, because 97156091415 - 2² = 97156091411 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97156091411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241111 + ... + 502440.

It is an arithmetic number, because the mean of its divisors is an integer number (5032359936).

Almost surely, 2^97156091415 is an apocalyptic number.

97156091415 is a deficient number, since it is larger than the sum of its proper divisors (63879426537).

97156091415 is a wasteful number, since it uses less digits than its factorization.

97156091415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743871.

The product of its (nonzero) digits is 340200, while the sum is 48.

The spelling of 97156091415 in words is "ninety-seven billion, one hundred fifty-six million, ninety-one thousand, four hundred fifteen".