15561455650030 has 16 divisors (see below), whose sum is σ = 28428689129040. Its totient is φ = 6131678046912.

The previous prime is 15561455650007. The next prime is 15561455650031. The reversal of 15561455650030 is 3005655416551.

15561455650030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15561455650031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11613025935 + ... + 11613027274.

It is an arithmetic number, because the mean of its divisors is an integer number (1776793070565).

Almost surely, 2^{15561455650030} is an apocalyptic number.

15561455650030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15561455650030 is a deficient number, since it is larger than the sum of its proper divisors (12867233479010).

15561455650030 is a wasteful number, since it uses less digits than its factorization.

15561455650030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23226053283.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 15561455650030 in words is "fifteen trillion, five hundred sixty-one billion, four hundred fifty-five million, six hundred fifty thousand, thirty".