1551650556064 has 96 divisors (see below), whose sum is σ = 3654592929792. Its totient is φ = 634477536000.

The previous prime is 1551650556061. The next prime is 1551650556089. The reversal of 1551650556064 is 4606550561551.

It is a junction number, because it is equal to n+sod(n) for n = 1551650555999 and 1551650556017.

It is not an unprimeable number, because it can be changed into a prime (1551650556061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080582 + ... + 2066629.

It is an arithmetic number, because the mean of its divisors is an integer number (38068676352).

Almost surely, 2^{1551650556064} is an apocalyptic number.

1551650556064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1551650556064 is an abundant number, since it is smaller than the sum of its proper divisors (2102942373728).

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

1551650556064 is a wasteful number, since it uses less digits than its factorization.

1551650556064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147330 (or 3147322 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 49.

The spelling of 1551650556064 in words is "one trillion, five hundred fifty-one billion, six hundred fifty million, five hundred fifty-six thousand, sixty-four".