1164136020 has 48 divisors (see below), whose sum is σ = 3296220480. Its totient is φ = 306946816.

The previous prime is 1164135983. The next prime is 1164136063. The reversal of 1164136020 is 206314611.

It is a super-2 number, since 2×1164136020² = 2710425346122880800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103662 + ... + 114341.

It is an arithmetic number, because the mean of its divisors is an integer number (68671260).

Almost surely, 2^1164136020 is an apocalyptic number.

1164136020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164136020 is an abundant number, since it is smaller than the sum of its proper divisors (2132084460).

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

1164136020 is a wasteful number, since it uses less digits than its factorization.

1164136020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218104 (or 218102 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1164136020 is about 34119.4375686353. The cubic root of 1164136020 is about 1051.9648831449.

The spelling of 1164136020 in words is "one billion, one hundred sixty-four million, one hundred thirty-six thousand, twenty".