856677533040 has 300 divisors, whose sum is σ = 3461143635576. Its totient is φ = 195811934976.

The previous prime is 856677533027. The next prime is 856677533053. The reversal of 856677533040 is 40335776658.

856677533040 is a `hidden beast` number, since 8 + 5 + 6 + 67 + 7 + 533 + 0 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (856677533027) and next prime (856677533053).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1031494 + ... + 1666533.

Almost surely, 2^856677533040 is an apocalyptic number.

856677533040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

856677533040 is an abundant number, since it is smaller than the sum of its proper divisors (2604466102536).

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

856677533040 is a wasteful number, since it uses less digits than its factorization.

856677533040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698066 (or 2698044 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 856677533040 in words is "eight hundred fifty-six billion, six hundred seventy-seven million, five hundred thirty-three thousand, forty".