97655432222111 has 4 divisors (see below), whose sum is σ = 100294768228152. Its totient is φ = 95016096216072.

The previous prime is 97655432222099. The next prime is 97655432222143. The reversal of 97655432222111 is 11122223455679.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97655432222111 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 97655432222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97655432222171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319668002965 + ... + 1319668003038.

It is an arithmetic number, because the mean of its divisors is an integer number (25073692057038).

Almost surely, 2^{97655432222111} is an apocalyptic number.

97655432222111 is a deficient number, since it is larger than the sum of its proper divisors (2639336006041).

97655432222111 is a wasteful number, since it uses less digits than its factorization.

97655432222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639336006040.

The product of its digits is 1814400, while the sum is 50.

The spelling of 97655432222111 in words is "ninety-seven trillion, six hundred fifty-five billion, four hundred thirty-two million, two hundred twenty-two thousand, one hundred eleven".