6557215652572 has 24 divisors (see below), whose sum is σ = 12357899379056. Its totient is φ = 3026390110848.

The previous prime is 6557215652543. The next prime is 6557215652593. The reversal of 6557215652572 is 2752565127556.

It is a super-2 number, since 2×6557215652572² (a number of 26 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, 16690063 + ... + 17078425.

Almost surely, 2^{6557215652572} is an apocalyptic number.

It is an amenable number.

6557215652572 is a deficient number, since it is larger than the sum of its proper divisors (5800683726484).

6557215652572 is a wasteful number, since it uses less digits than its factorization.

6557215652572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713077 (or 713075 counting only the distinct ones).

The product of its digits is 44100000, while the sum is 58.

The spelling of 6557215652572 in words is "six trillion, five hundred fifty-seven billion, two hundred fifteen million, six hundred fifty-two thousand, five hundred seventy-two".