215666012932 has 12 divisors (see below), whose sum is σ = 377456070096. Its totient is φ = 107821421480.

The previous prime is 215666012899. The next prime is 215666012941. The reversal of 215666012932 is 239210666512.

It is a super-3 number, since 3×215666012932³ (a number of 35 digits) contains 333 as substring.

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, 2854294 + ... + 2928877.

It is an arithmetic number, because the mean of its divisors is an integer number (31454672508).

Almost surely, 2^215666012932 is an apocalyptic number.

It is an amenable number.

215666012932 is a deficient number, since it is larger than the sum of its proper divisors (161790057164).

215666012932 is a wasteful number, since it uses less digits than its factorization.

215666012932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792498 (or 5792496 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 215666012932 in words is "two hundred fifteen billion, six hundred sixty-six million, twelve thousand, nine hundred thirty-two".