30661630313655 has 128 divisors (see below), whose sum is σ = 55454061763584. Its totient is φ = 14338082304000.

The previous prime is 30661630313651. The next prime is 30661630313681. The reversal of 30661630313655 is 55631303616603.

It is not a de Polignac number, because 30661630313655 - 2² = 30661630313651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30661630313651) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 267232579 + ... + 267347291.

It is an arithmetic number, because the mean of its divisors is an integer number (433234857528).

Almost surely, 2^{30661630313655} is an apocalyptic number.

30661630313655 is a deficient number, since it is larger than the sum of its proper divisors (24792431449929).

30661630313655 is a wasteful number, since it uses less digits than its factorization.

30661630313655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115249.

The product of its (nonzero) digits is 2624400, while the sum is 48.

The spelling of 30661630313655 in words is "thirty trillion, six hundred sixty-one billion, six hundred thirty million, three hundred thirteen thousand, six hundred fifty-five".