3906659261040 has 160 divisors (see below), whose sum is σ = 12638188532736. Its totient is φ = 996402739200.

The previous prime is 3906659261003. The next prime is 3906659261047. The reversal of 3906659261040 is 401629566093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906659261047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108046965 + ... + 108083115.

Almost surely, 2^{3906659261040} is an apocalyptic number.

3906659261040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3906659261040 is an abundant number, since it is smaller than the sum of its proper divisors (8731529271696).

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

3906659261040 is a wasteful number, since it uses less digits than its factorization.

3906659261040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55767 (or 55761 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 3906659261040 in words is "three trillion, nine hundred six billion, six hundred fifty-nine million, two hundred sixty-one thousand, forty".