1406632562646 has 8 divisors (see below), whose sum is σ = 2813265125304. Its totient is φ = 468877520880.

The previous prime is 1406632562639. The next prime is 1406632562651. The reversal of 1406632562646 is 6462652366041.

It is a sphenic number, since it is the product of 3 distinct primes.

1406632562646 is an admirable number.

It is a super-2 number, since 2×1406632562646² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 117219380215 + ... + 117219380226.

It is an arithmetic number, because the mean of its divisors is an integer number (351658140663).

Almost surely, 2^{1406632562646} is an apocalyptic number.

1406632562646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1406632562646 is a wasteful number, since it uses less digits than its factorization.

1406632562646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234438760446.

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 1406632562646 in words is "one trillion, four hundred six billion, six hundred thirty-two million, five hundred sixty-two thousand, six hundred forty-six".