156166100015506 has 16 divisors (see below), whose sum is σ = 268627011637824. Its totient is φ = 66699904246704.

The previous prime is 156166100015479. The next prime is 156166100015507. The reversal of 156166100015506 is 605510001661651.

It is not an unprimeable number, because it can be changed into a prime (156166100015507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19035356700 + ... + 19035364903.

It is an arithmetic number, because the mean of its divisors is an integer number (16789188227364).

Almost surely, 2^{156166100015506} is an apocalyptic number.

156166100015506 is a deficient number, since it is larger than the sum of its proper divisors (112460911622318).

156166100015506 is a wasteful number, since it uses less digits than its factorization.

156166100015506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38070721905.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 156166100015506 in words is "one hundred fifty-six trillion, one hundred sixty-six billion, one hundred million, fifteen thousand, five hundred six".