74706166042 has 4 divisors (see below), whose sum is σ = 112059249066. Its totient is φ = 37353083020.

The previous prime is 74706166033. The next prime is 74706166091. The reversal of 74706166042 is 24066160747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24066160747 = 8219 ⋅2928113.

It can be written as a sum of positive squares in only one way, i.e., 54807960321 + 19898205721 = 234111^2 + 141061^2 .

It is a super-3 number, since 3×74706166042³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 74706166042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18676541509 + ... + 18676541512.

Almost surely, 2^74706166042 is an apocalyptic number.

74706166042 is a deficient number, since it is larger than the sum of its proper divisors (37353083024).

74706166042 is a wasteful number, since it uses less digits than its factorization.

74706166042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37353083023.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 74706166042 in words is "seventy-four billion, seven hundred six million, one hundred sixty-six thousand, forty-two".