66590708942 has 12 divisors (see below), whose sum is σ = 106107341640. Its totient is φ = 31336803936.

The previous prime is 66590708929. The next prime is 66590708971. The reversal of 66590708942 is 24980709566.

It is a happy number.

66590708942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×66590708942³ (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 5 ways as a sum of consecutive naturals, for example, 57603842 + ... + 57604997.

It is an arithmetic number, because the mean of its divisors is an integer number (8842278470).

Almost surely, 2^66590708942 is an apocalyptic number.

66590708942 is a deficient number, since it is larger than the sum of its proper divisors (39516632698).

66590708942 is a wasteful number, since it uses less digits than its factorization.

66590708942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115208875 (or 115208858 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 66590708942 in words is "sixty-six billion, five hundred ninety million, seven hundred eight thousand, nine hundred forty-two".