40137187506606 has 48 divisors (see below), whose sum is σ = 87588074910336. Its totient is φ = 13283358257088.

The previous prime is 40137187506557. The next prime is 40137187506641. The reversal of 40137187506606 is 60660578173104.

40137187506606 is a `hidden beast` number, since 4 + 0 + 1 + 3 + 71 + 8 + 7 + 506 + 60 + 6 = 666.

It is a super-2 number, since 2×40137187506606² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11906665 + ... + 14901108.

It is an arithmetic number, because the mean of its divisors is an integer number (1824751560632).

Almost surely, 2^{40137187506606} is an apocalyptic number.

40137187506606 is an abundant number, since it is smaller than the sum of its proper divisors (47450887403730).

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

40137187506606 is a wasteful number, since it uses less digits than its factorization.

40137187506606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26808377 (or 26808374 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 40137187506606 in words is "forty trillion, one hundred thirty-seven billion, one hundred eighty-seven million, five hundred six thousand, six hundred six".