97160798521 has 4 divisors (see below), whose sum is σ = 98529260544. Its totient is φ = 95792336500.

The previous prime is 97160798519. The next prime is 97160798561. The reversal of 97160798521 is 12589706179.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97160798521 - 2¹ = 97160798519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97160798561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 684230905 + ... + 684231046.

It is an arithmetic number, because the mean of its divisors is an integer number (24632315136).

Almost surely, 2^97160798521 is an apocalyptic number.

It is an amenable number.

97160798521 is a deficient number, since it is larger than the sum of its proper divisors (1368462023).

97160798521 is a wasteful number, since it uses less digits than its factorization.

97160798521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368462022.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 97160798521 in words is "ninety-seven billion, one hundred sixty million, seven hundred ninety-eight thousand, five hundred twenty-one".