1155653670 has 16 divisors (see below), whose sum is σ = 2773568880. Its totient is φ = 308174304.

The previous prime is 1155653641. The next prime is 1155653677. The reversal of 1155653670 is 763565511.

It is a super-3 number, since 3×1155653670³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155653677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19260865 + ... + 19260924.

It is an arithmetic number, because the mean of its divisors is an integer number (173348055).

Almost surely, 2^1155653670 is an apocalyptic number.

1155653670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155653670 is an abundant number, since it is smaller than the sum of its proper divisors (1617915210).

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

1155653670 is a wasteful number, since it uses less digits than its factorization.

1155653670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38521799.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 1155653670 is about 33994.9065302436. The cubic root of 1155653670 is about 1049.4036432174.

The spelling of 1155653670 in words is "one billion, one hundred fifty-five million, six hundred fifty-three thousand, six hundred seventy".