61231040066008 has 16 divisors (see below), whose sum is σ = 115390982868480. Its totient is φ = 30460111301088.

The previous prime is 61231040065999. The next prime is 61231040066011. The reversal of 61231040066008 is 80066004013216.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19426089816 + ... + 19426092967.

It is an arithmetic number, because the mean of its divisors is an integer number (7211936429280).

Almost surely, 2^{61231040066008} is an apocalyptic number.

It is an amenable number.

61231040066008 is a deficient number, since it is larger than the sum of its proper divisors (54159942802472).

61231040066008 is a wasteful number, since it uses less digits than its factorization.

61231040066008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38852182986 (or 38852182982 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 61231040066008 in words is "sixty-one trillion, two hundred thirty-one billion, forty million, sixty-six thousand, eight".