264401254356551 has 16 divisors (see below), whose sum is σ = 288628758687360. Its totient is φ = 240735413318400.

The previous prime is 264401254356541. The next prime is 264401254356587. The reversal of 264401254356551 is 155653452104462.

It is a happy number.

264401254356551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-264401254356551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264401254356493 and 264401254356502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264401254356541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126032750 + ... + 128113451.

It is an arithmetic number, because the mean of its divisors is an integer number (18039297417960).

Almost surely, 2^{264401254356551} is an apocalyptic number.

264401254356551 is a deficient number, since it is larger than the sum of its proper divisors (24227504330809).

264401254356551 is a wasteful number, since it uses less digits than its factorization.

264401254356551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254147306.

The product of its (nonzero) digits is 17280000, while the sum is 53.

The spelling of 264401254356551 in words is "two hundred sixty-four trillion, four hundred one billion, two hundred fifty-four million, three hundred fifty-six thousand, five hundred fifty-one".