66536842562 has 8 divisors (see below), whose sum is σ = 99819610176. Its totient is φ = 33263639172.

The previous prime is 66536842553. The next prime is 66536842573. The reversal of 66536842562 is 26524863566.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2373638 + ... + 2401505.

It is an arithmetic number, because the mean of its divisors is an integer number (12477451272).

Almost surely, 2^66536842562 is an apocalyptic number.

66536842562 is a deficient number, since it is larger than the sum of its proper divisors (33282767614).

66536842562 is a wasteful number, since it uses less digits than its factorization.

66536842562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782112.

The product of its digits is 12441600, while the sum is 53.

The spelling of 66536842562 in words is "sixty-six billion, five hundred thirty-six million, eight hundred forty-two thousand, five hundred sixty-two".