66970990046 has 32 divisors (see below), whose sum is σ = 103498250688. Its totient is φ = 32477518080.

The previous prime is 66970990039. The next prime is 66970990049. The reversal of 66970990046 is 64009907966.

It is a super-2 number, since 2×66970990046² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66970989973 and 66970990000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66970990049) 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, 56136026 + ... + 56137218.

It is an arithmetic number, because the mean of its divisors is an integer number (3234320334).

Almost surely, 2^66970990046 is an apocalyptic number.

66970990046 is a deficient number, since it is larger than the sum of its proper divisors (36527260642).

66970990046 is a wasteful number, since it uses less digits than its factorization.

66970990046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The spelling of 66970990046 in words is "sixty-six billion, nine hundred seventy million, nine hundred ninety thousand, forty-six".