196662526428 has 24 divisors (see below), whose sum is σ = 461442804480. Its totient is φ = 65187950320.

The previous prime is 196662526343. The next prime is 196662526447. The reversal of 196662526428 is 824625266691.

It is a super-2 number, since 2×196662526428² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45775908 + ... + 45780203.

It is an arithmetic number, because the mean of its divisors is an integer number (19226783520).

Almost surely, 2^196662526428 is an apocalyptic number.

It is an amenable number.

196662526428 is an abundant number, since it is smaller than the sum of its proper divisors (264780278052).

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

196662526428 is a wasteful number, since it uses less digits than its factorization.

196662526428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91556297 (or 91556295 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 196662526428 in words is "one hundred ninety-six billion, six hundred sixty-two million, five hundred twenty-six thousand, four hundred twenty-eight".