2151461735065 has 16 divisors (see below), whose sum is σ = 2644900529040. Its totient is φ = 1679077370880.

The previous prime is 2151461735051. The next prime is 2151461735161. The reversal of 2151461735065 is 5605371641512.

It can be written as a sum of positive squares in 8 ways, for example, as 538350908176 + 1613110826889 = 733724^2 + 1270083^2 .

It is not a de Polignac number, because 2151461735065 - 2²⁵ = 2151428180633 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2791027 + ... + 3477463.

It is an arithmetic number, because the mean of its divisors is an integer number (165306283065).

Almost surely, 2^{2151461735065} is an apocalyptic number.

It is an amenable number.

2151461735065 is a deficient number, since it is larger than the sum of its proper divisors (493438793975).

2151461735065 is a wasteful number, since it uses less digits than its factorization.

2151461735065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701772.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 2151461735065 in words is "two trillion, one hundred fifty-one billion, four hundred sixty-one million, seven hundred thirty-five thousand, sixty-five".