1165155500651 has 8 divisors (see below), whose sum is σ = 1167956785200. Its totient is φ = 1162354987872.

The previous prime is 1165155500627. The next prime is 1165155500683. The reversal of 1165155500651 is 1560055515611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1165155500651 is a prime.

It is a super-2 number, since 2×1165155500651² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1165155500599 and 1165155500608.

It is not an unprimeable number, because it can be changed into a prime (1165155500251) 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, 2889161 + ... + 3267653.

It is an arithmetic number, because the mean of its divisors is an integer number (145994598150).

Almost surely, 2^{1165155500651} is an apocalyptic number.

1165155500651 is a deficient number, since it is larger than the sum of its proper divisors (2801284549).

1165155500651 is an equidigital number, since it uses as much as digits as its factorization.

1165155500651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385885.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 1165155500651 in words is "one trillion, one hundred sixty-five billion, one hundred fifty-five million, five hundred thousand, six hundred fifty-one".