66562747101 has 48 divisors (see below), whose sum is σ = 102779040000. Its totient is φ = 41504441472.

The previous prime is 66562747099. The next prime is 66562747157. The reversal of 66562747101 is 10174726566.

66562747101 is a `hidden beast` number, since 6 + 6 + 5 + 627 + 4 + 7 + 10 + 1 = 666.

It is not a de Polignac number, because 66562747101 - 2¹ = 66562747099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66562747171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4869925 + ... + 4883573.

It is an arithmetic number, because the mean of its divisors is an integer number (2141230000).

Almost surely, 2^66562747101 is an apocalyptic number.

It is an amenable number.

66562747101 is a deficient number, since it is larger than the sum of its proper divisors (36216292899).

66562747101 is a wasteful number, since it uses less digits than its factorization.

66562747101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13791 (or 13750 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 66562747101 in words is "sixty-six billion, five hundred sixty-two million, seven hundred forty-seven thousand, one hundred one".