66142104 has 64 divisors (see below), whose sum is σ = 200102400. Its totient is φ = 17785344.

The previous prime is 66142099. The next prime is 66142123. The reversal of 66142104 is 40124166.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8724 + ... + 14435.

It is an arithmetic number, because the mean of its divisors is an integer number (3126600).

Almost surely, 2^66142104 is an apocalyptic number.

It is an amenable number.

66142104 is an abundant number, since it is smaller than the sum of its proper divisors (133960296).

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

66142104 is a wasteful number, since it uses less digits than its factorization.

66142104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23192 (or 23188 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 66142104 is about 8132.7795986366. The cubic root of 66142104 is about 404.4138327227.

The spelling of 66142104 in words is "sixty-six million, one hundred forty-two thousand, one hundred four".