1515165166656 has 84 divisors (see below), whose sum is σ = 4352014867200. Its totient is φ = 504000569088.

The previous prime is 1515165166643. The next prime is 1515165166657. The reversal of 1515165166656 is 6566615615151.

It is not an unprimeable number, because it can be changed into a prime (1515165166657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469916 + ... + 3021723.

It is an arithmetic number, because the mean of its divisors is an integer number (51809700800).

Almost surely, 2^{1515165166656} is an apocalyptic number.

1515165166656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1515165166656 is an abundant number, since it is smaller than the sum of its proper divisors (2836849700544).

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

1515165166656 is a wasteful number, since it uses less digits than its factorization.

1515165166656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492136 (or 5492123 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 54.

The spelling of 1515165166656 in words is "one trillion, five hundred fifteen billion, one hundred sixty-five million, one hundred sixty-six thousand, six hundred fifty-six".