1156152672 has 72 divisors (see below), whose sum is σ = 3343583880. Its totient is φ = 378846720.

The previous prime is 1156152667. The next prime is 1156152689. The reversal of 1156152672 is 2762516511.

1156152672 is a `hidden beast` number, since 1 + 1 + 5 + 61 + 526 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17029 + ... + 51012.

It is an arithmetic number, because the mean of its divisors is an integer number (46438665).

Almost surely, 2^1156152672 is an apocalyptic number.

1156152672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1156152672 is an abundant number, since it is smaller than the sum of its proper divisors (2187431208).

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

1156152672 is a wasteful number, since it uses less digits than its factorization.

1156152672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68116 (or 68105 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 1156152672 is about 34002.2451023458. The cubic root of 1156152672 is about 1049.5546628463.

The spelling of 1156152672 in words is "one billion, one hundred fifty-six million, one hundred fifty-two thousand, six hundred seventy-two".