1401735800556 has 72 divisors (see below), whose sum is σ = 4360955834144. Its totient is φ = 369688561920.

The previous prime is 1401735800551. The next prime is 1401735800587. The reversal of 1401735800556 is 6550085371041.

1401735800556 is a `hidden beast` number, since 1 + 4 + 0 + 17 + 3 + 5 + 80 + 0 + 556 = 666.

It is not an unprimeable number, because it can be changed into a prime (1401735800551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213936865 + ... + 213943416.

Almost surely, 2^{1401735800556} is an apocalyptic number.

It is an amenable number.

1401735800556 is an abundant number, since it is smaller than the sum of its proper divisors (2959220033588).

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

1401735800556 is a wasteful number, since it uses less digits than its factorization.

1401735800556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427880311 (or 427880306 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 1401735800556 in words is "one trillion, four hundred one billion, seven hundred thirty-five million, eight hundred thousand, five hundred fifty-six".