1350557656542 has 64 divisors (see below), whose sum is σ = 3123087264000. Its totient is φ = 432263581344.

The previous prime is 1350557656529. The next prime is 1350557656543. The reversal of 1350557656542 is 2456567550531.

1350557656542 is a `hidden beast` number, since 1 + 3 + 5 + 0 + 5 + 5 + 76 + 565 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350557656543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4792117 + ... + 5066112.

It is an arithmetic number, because the mean of its divisors is an integer number (48798238500).

Almost surely, 2^{1350557656542} is an apocalyptic number.

1350557656542 is an abundant number, since it is smaller than the sum of its proper divisors (1772529607458).

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

1350557656542 is a wasteful number, since it uses less digits than its factorization.

1350557656542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9858342 (or 9858336 counting only the distinct ones).

The product of its (nonzero) digits is 18900000, while the sum is 54.

The spelling of 1350557656542 in words is "one trillion, three hundred fifty billion, five hundred fifty-seven million, six hundred fifty-six thousand, five hundred forty-two".