2056149900 has 144 divisors (see below), whose sum is σ = 7554516480. Its totient is φ = 469972800.

The previous prime is 2056149859. The next prime is 2056149917. The reversal of 2056149900 is 99416502.

2056149900 is a `hidden beast` number, since 2 + 0 + 561 + 4 + 9 + 90 + 0 = 666.

It is a super-2 number, since 2×2056149900² = 8455504822540020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35496 + ... + 73295.

It is an arithmetic number, because the mean of its divisors is an integer number (52461920).

Almost surely, 2^2056149900 is an apocalyptic number.

2056149900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2056149900 is an abundant number, since it is smaller than the sum of its proper divisors (5498366580).

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

2056149900 is a wasteful number, since it uses less digits than its factorization.

2056149900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108821 (or 108808 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 2056149900 is about 45344.7891162810. The cubic root of 2056149900 is about 1271.6031380295.

The spelling of 2056149900 in words is "two billion, fifty-six million, one hundred forty-nine thousand, nine hundred".