166015211153403 has 32 divisors (see below), whose sum is σ = 222208150528000. Its totient is φ = 110250347239296.

The previous prime is 166015211153401. The next prime is 166015211153461. The reversal of 166015211153403 is 304351112510661.

It is not a de Polignac number, because 166015211153403 - 2¹ = 166015211153401 is a prime.

It is a super-2 number, since 2×166015211153403² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166015211153401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4978995750 + ... + 4979029092.

It is an arithmetic number, because the mean of its divisors is an integer number (6944004704000).

Almost surely, 2^{166015211153403} is an apocalyptic number.

166015211153403 is a deficient number, since it is larger than the sum of its proper divisors (56192939374597).

166015211153403 is a wasteful number, since it uses less digits than its factorization.

166015211153403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39211.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 166015211153403 in words is "one hundred sixty-six trillion, fifteen billion, two hundred eleven million, one hundred fifty-three thousand, four hundred three".