97667013440 has 28 divisors (see below), whose sum is σ = 232569576516. Its totient is φ = 39066805248.

The previous prime is 97667013383. The next prime is 97667013487. The reversal of 97667013440 is 4431076679.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10797703744 + 86869309696 = 103912^2 + 294736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152604389 + ... + 152605028.

Almost surely, 2^97667013440 is an apocalyptic number.

It is an amenable number.

97667013440 is an abundant number, since it is smaller than the sum of its proper divisors (134902563076).

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

97667013440 is a wasteful number, since it uses less digits than its factorization.

97667013440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305209434 (or 305209424 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 97667013440 in words is "ninety-seven billion, six hundred sixty-seven million, thirteen thousand, four hundred forty".