30661602461553 has 64 divisors (see below), whose sum is σ = 49989219614208. Its totient is φ = 16317531095040.

The previous prime is 30661602461551. The next prime is 30661602461629. The reversal of 30661602461553 is 35516420616603.

It is not a de Polignac number, because 30661602461553 - 2¹ = 30661602461551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30661602461551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215217283 + ... + 215359703.

It is an arithmetic number, because the mean of its divisors is an integer number (781081556472).

Almost surely, 2^{30661602461553} is an apocalyptic number.

It is an amenable number.

30661602461553 is a deficient number, since it is larger than the sum of its proper divisors (19327617152655).

30661602461553 is a wasteful number, since it uses less digits than its factorization.

30661602461553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148762.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 30661602461553 in words is "thirty trillion, six hundred sixty-one billion, six hundred two million, four hundred sixty-one thousand, five hundred fifty-three".