66670374051 has 16 divisors (see below), whose sum is σ = 98787954720. Its totient is φ = 44439252480.

The previous prime is 66670374041. The next prime is 66670374061. The reversal of 66670374051 is 15047307666.

It is an interprime number because it is at equal distance from previous prime (66670374041) and next prime (66670374061).

It is not a de Polignac number, because 66670374051 - 2¹¹ = 66670372003 is a prime.

It is a super-2 number, since 2×66670374051² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66670373988 and 66670374006.

It is not an unprimeable number, because it can be changed into a prime (66670374041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51150 + ... + 368723.

It is an arithmetic number, because the mean of its divisors is an integer number (6174247170).

Almost surely, 2^66670374051 is an apocalyptic number.

66670374051 is a deficient number, since it is larger than the sum of its proper divisors (32117580669).

66670374051 is a wasteful number, since it uses less digits than its factorization.

66670374051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425763 (or 425757 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 66670374051 in words is "sixty-six billion, six hundred seventy million, three hundred seventy-four thousand, fifty-one".