156434545434651 has 48 divisors (see below), whose sum is σ = 235554754684704. Its totient is φ = 92209803840000.

The previous prime is 156434545434521. The next prime is 156434545434653.

156434545434651 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 156434545434651 - 2¹¹ = 156434545432603 is a prime.

It is a super-2 number, since 2×156434545434651² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156434545434653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31549501 + ... + 36169601.

It is an arithmetic number, because the mean of its divisors is an integer number (4907390722598).

Almost surely, 2^{156434545434651} is an apocalyptic number.

156434545434651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

156434545434651 is a deficient number, since it is larger than the sum of its proper divisors (79120209250053).

156434545434651 is a wasteful number, since it uses less digits than its factorization.

156434545434651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622684 (or 4622673 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 60.

The spelling of 156434545434651 in words is "one hundred fifty-six trillion, four hundred thirty-four billion, five hundred forty-five million, four hundred thirty-four thousand, six hundred fifty-one".