673400051556 has 12 divisors (see below), whose sum is σ = 1571266786992. Its totient is φ = 224466683848.

The previous prime is 673400051477. The next prime is 673400051567. The reversal of 673400051556 is 655150004376.

673400051556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×673400051556² (a number of 24 digits) contains 22 as substring.

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, 28058335470 + ... + 28058335493.

It is an arithmetic number, because the mean of its divisors is an integer number (130938898916).

Almost surely, 2^673400051556 is an apocalyptic number.

It is an amenable number.

673400051556 is an abundant number, since it is smaller than the sum of its proper divisors (897866735436).

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

673400051556 is a wasteful number, since it uses less digits than its factorization.

673400051556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56116670970 (or 56116670968 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 673400051556 in words is "six hundred seventy-three billion, four hundred million, fifty-one thousand, five hundred fifty-six".