1160561550 has 48 divisors (see below), whose sum is σ = 2880708480. Its totient is φ = 309212640.

The previous prime is 1160561509. The next prime is 1160561551. The reversal of 1160561550 is 551650611.

It is a super-2 number, since 2×1160561550² = 2693806222676805000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160561551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216199 + ... + 221501.

It is an arithmetic number, because the mean of its divisors is an integer number (60014760).

Almost surely, 2^1160561550 is an apocalyptic number.

1160561550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1160561550 is an abundant number, since it is smaller than the sum of its proper divisors (1720146930).

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

1160561550 is a wasteful number, since it uses less digits than its factorization.

1160561550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777 (or 6772 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1160561550 is about 34067.0155722511. The cubic root of 1160561550 is about 1050.8870961277.

The spelling of 1160561550 in words is "one billion, one hundred sixty million, five hundred sixty-one thousand, five hundred fifty".