320061524642551 has 16 divisors (see below), whose sum is σ = 341235481910400. Its totient is φ = 299666795607648.

The previous prime is 320061524642479. The next prime is 320061524642567. The reversal of 320061524642551 is 155246425160023.

It is a cyclic number.

It is not a de Polignac number, because 320061524642551 - 2⁷ = 320061524642423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320061524646551) 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, 923082841 + ... + 923429506.

It is an arithmetic number, because the mean of its divisors is an integer number (21327217619400).

Almost surely, 2^{320061524642551} is an apocalyptic number.

320061524642551 is a deficient number, since it is larger than the sum of its proper divisors (21173957267849).

320061524642551 is a wasteful number, since it uses less digits than its factorization.

320061524642551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846512558.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 320061524642551 in words is "three hundred twenty trillion, sixty-one billion, five hundred twenty-four million, six hundred forty-two thousand, five hundred fifty-one".