166015203101061 has 16 divisors (see below), whose sum is σ = 221413869748224. Its totient is φ = 110646670402224.

The previous prime is 166015203100939. The next prime is 166015203101093. The reversal of 166015203101061 is 160101302510661.

It is not a de Polignac number, because 166015203101061 - 2⁷ = 166015203100933 is a prime.

It is a super-2 number, since 2×166015203101061² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166015203101161) 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, 764209320 + ... + 764426526.

It is an arithmetic number, because the mean of its divisors is an integer number (13838366859264).

Almost surely, 2^{166015203101061} is an apocalyptic number.

It is an amenable number.

166015203101061 is a deficient number, since it is larger than the sum of its proper divisors (55398666647163).

166015203101061 is a wasteful number, since it uses less digits than its factorization.

166015203101061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285400.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 166015203101061 in words is "one hundred sixty-six trillion, fifteen billion, two hundred three million, one hundred one thousand, sixty-one".