6677631572 has 12 divisors (see below), whose sum is σ = 11715898740. Its totient is φ = 3330231936.

The previous prime is 6677631557. The next prime is 6677631589. The reversal of 6677631572 is 2751367766.

It can be written as a sum of positive squares in 2 ways, for example, as 801795856 + 5875835716 = 28316^2 + 76654^2 .

It is a super-2 number, since 2×6677631572² = 89181526822742382368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6677631572.

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, 2144213 + ... + 2147324.

It is an arithmetic number, because the mean of its divisors is an integer number (976324895).

Almost surely, 2^6677631572 is an apocalyptic number.

It is an amenable number.

6677631572 is a deficient number, since it is larger than the sum of its proper divisors (5038267168).

6677631572 is a wasteful number, since it uses less digits than its factorization.

6677631572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291930 (or 4291928 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 50.

The square root of 6677631572 is about 81716.7765639345. The cubic root of 6677631572 is about 1883.1033296758.

The spelling of 6677631572 in words is "six billion, six hundred seventy-seven million, six hundred thirty-one thousand, five hundred seventy-two".