10157768020 has 12 divisors (see below), whose sum is σ = 21331312884. Its totient is φ = 4063107200.

The previous prime is 10157768003. The next prime is 10157768113. The reversal of 10157768020 is 2086775101.

It can be written as a sum of positive squares in 2 ways, for example, as 1089396036 + 9068371984 = 33006^2 + 95228^2 .

It is a super-2 number, since 2×10157768020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253944181 + ... + 253944220.

It is an arithmetic number, because the mean of its divisors is an integer number (1777609407).

Almost surely, 2^10157768020 is an apocalyptic number.

10157768020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10157768020 is an abundant number, since it is smaller than the sum of its proper divisors (11173544864).

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

10157768020 is a wasteful number, since it uses less digits than its factorization.

10157768020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507888410 (or 507888408 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 10157768020 in words is "ten billion, one hundred fifty-seven million, seven hundred sixty-eight thousand, twenty".