75406694660 has 48 divisors (see below), whose sum is σ = 175116356352. Its totient is φ = 27044985600.

The previous prime is 75406694653. The next prime is 75406694663. The reversal of 75406694660 is 6649660457.

It is a happy number.

It is a super-3 number, since 3×75406694660³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (75406694663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2331596 + ... + 2363715.

It is an arithmetic number, because the mean of its divisors is an integer number (3648257424).

Almost surely, 2^75406694660 is an apocalyptic number.

It is an amenable number.

75406694660 is an abundant number, since it is smaller than the sum of its proper divisors (99709661692).

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

75406694660 is a wasteful number, since it uses less digits than its factorization.

75406694660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695404 (or 4695402 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 75406694660 in words is "seventy-five billion, four hundred six million, six hundred ninety-four thousand, six hundred sixty".