15491542051206 has 48 divisors (see below), whose sum is σ = 37393377381360. Its totient is φ = 4602261827520.

The previous prime is 15491542051187. The next prime is 15491542051213. The reversal of 15491542051206 is 60215024519451.

15491542051206 is a `hidden beast` number, since 1 + 5 + 4 + 9 + 15 + 420 + 5 + 1 + 206 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1141427200 + ... + 1141440771.

It is an arithmetic number, because the mean of its divisors is an integer number (779028695445).

Almost surely, 2^{15491542051206} is an apocalyptic number.

15491542051206 is an abundant number, since it is smaller than the sum of its proper divisors (21901835330154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15491542051206 is a wasteful number, since it uses less digits than its factorization.

15491542051206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282868021 (or 2282868018 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 15491542051206 in words is "fifteen trillion, four hundred ninety-one billion, five hundred forty-two million, fifty-one thousand, two hundred six".