30561540656151 has 16 divisors (see below), whose sum is σ = 41487374265984. Its totient is φ = 20006952323424.

The previous prime is 30561540656099. The next prime is 30561540656173. The reversal of 30561540656151 is 15165604516503.

It is a happy number.

It is not a de Polignac number, because 30561540656151 - 2¹¹ = 30561540654103 is a prime.

It is a super-2 number, since 2×30561540656151² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30561540656151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561540656651) 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, 239758785 + ... + 239886218.

It is an arithmetic number, because the mean of its divisors is an integer number (2592960891624).

Almost surely, 2^{30561540656151} is an apocalyptic number.

30561540656151 is a deficient number, since it is larger than the sum of its proper divisors (10925833609833).

30561540656151 is a wasteful number, since it uses less digits than its factorization.

30561540656151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479645390.

The product of its (nonzero) digits is 1620000, while the sum is 48.

The spelling of 30561540656151 in words is "thirty trillion, five hundred sixty-one billion, five hundred forty million, six hundred fifty-six thousand, one hundred fifty-one".