66031189497354 has 32 divisors (see below), whose sum is σ = 135134154936000. Its totient is φ = 21498438068352.

The previous prime is 66031189497353. The next prime is 66031189497461. The reversal of 66031189497354 is 45379498113066.

It is not an unprimeable number, because it can be changed into a prime (66031189497353) 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, 96729022 + ... + 97409270.

It is an arithmetic number, because the mean of its divisors is an integer number (4222942341750).

Almost surely, 2^{66031189497354} is an apocalyptic number.

66031189497354 is an abundant number, since it is smaller than the sum of its proper divisors (69102965438646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66031189497354 is a wasteful number, since it uses less digits than its factorization.

66031189497354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056534.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 66031189497354 in words is "sixty-six trillion, thirty-one billion, one hundred eighty-nine million, four hundred ninety-seven thousand, three hundred fifty-four".