40666315534 has 24 divisors (see below), whose sum is σ = 66117194352. Its totient is φ = 18750738240.

The previous prime is 40666315513. The next prime is 40666315541. The reversal of 40666315534 is 43551366604.

It is a super-2 number, since 2×40666315534² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290919 + ... + 407389.

It is an arithmetic number, because the mean of its divisors is an integer number (2754883098).

Almost surely, 2^40666315534 is an apocalyptic number.

40666315534 is a deficient number, since it is larger than the sum of its proper divisors (25450878818).

40666315534 is a wasteful number, since it uses less digits than its factorization.

40666315534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117532 (or 117519 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 40666315534 in words is "forty billion, six hundred sixty-six million, three hundred fifteen thousand, five hundred thirty-four".