97557663562 has 4 divisors (see below), whose sum is σ = 146336495346. Its totient is φ = 48778831780.

The previous prime is 97557663523. The next prime is 97557663589. The reversal of 97557663562 is 26536675579.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61439041161 + 36118622401 = 247869^2 + 190049^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97557663562.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24389415889 + ... + 24389415892.

Almost surely, 2^97557663562 is an apocalyptic number.

97557663562 is a deficient number, since it is larger than the sum of its proper divisors (48778831784).

97557663562 is a wasteful number, since it uses less digits than its factorization.

97557663562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48778831783.

The product of its digits is 71442000, while the sum is 61.

The spelling of 97557663562 in words is "ninety-seven billion, five hundred fifty-seven million, six hundred sixty-three thousand, five hundred sixty-two".