6654936136 has 8 divisors (see below), whose sum is σ = 12478005270. Its totient is φ = 3327468064.

The previous prime is 6654936103. The next prime is 6654936137. The reversal of 6654936136 is 6316394566.

It can be written as a sum of positive squares in only one way, i.e., 3793328100 + 2861608036 = 61590^2 + 53494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6654936136² = 88576349948477220992, 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 6654936136.

It is not an unprimeable number, because it can be changed into a prime (6654936137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415933501 + ... + 415933516.

Almost surely, 2^6654936136 is an apocalyptic number.

It is an amenable number.

6654936136 is a deficient number, since it is larger than the sum of its proper divisors (5823069134).

6654936136 is a wasteful number, since it uses less digits than its factorization.

6654936136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831867023 (or 831867019 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 49.

The square root of 6654936136 is about 81577.7919289312. The cubic root of 6654936136 is about 1880.9675244709.

The spelling of 6654936136 in words is "six billion, six hundred fifty-four million, nine hundred thirty-six thousand, one hundred thirty-six".