66934779000 has 64 divisors (see below), whose sum is σ = 208836519840. Its totient is φ = 17849273600.

The previous prime is 66934778909. The next prime is 66934779011. The reversal of 66934779000 is 97743966.

It is a super-3 number, since 3×66934779000³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11152797 + ... + 11158796.

Almost surely, 2^66934779000 is an apocalyptic number.

66934779000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66934779000 is an abundant number, since it is smaller than the sum of its proper divisors (141901740840).

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

66934779000 is a wasteful number, since it uses less digits than its factorization.

66934779000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22311617 (or 22311603 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 51.

The spelling of 66934779000 in words is "sixty-six billion, nine hundred thirty-four million, seven hundred seventy-nine thousand".