3551680722405 has 16 divisors (see below), whose sum is σ = 5688096116544. Its totient is φ = 1892427398400.

The previous prime is 3551680722397. The next prime is 3551680722427. The reversal of 3551680722405 is 5042270861553.

It is not a de Polignac number, because 3551680722405 - 2³ = 3551680722397 is a prime.

It is a super-2 number, since 2×3551680722405² (a number of 26 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 15 ways as a sum of consecutive naturals, for example, 112628724 + ... + 112660253.

It is an arithmetic number, because the mean of its divisors is an integer number (355506007284).

Almost surely, 2^{3551680722405} is an apocalyptic number.

It is an amenable number.

3551680722405 is a deficient number, since it is larger than the sum of its proper divisors (2136415394139).

3551680722405 is a wasteful number, since it uses less digits than its factorization.

3551680722405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225290036.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 3551680722405 in words is "three trillion, five hundred fifty-one billion, six hundred eighty million, seven hundred twenty-two thousand, four hundred five".