1351161540556 has 24 divisors (see below), whose sum is σ = 2379192883200. Its totient is φ = 671393851152.

The previous prime is 1351161540541. The next prime is 1351161540559. The reversal of 1351161540556 is 6550451611531.

It is not an unprimeable number, because it can be changed into a prime (1351161540559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2994991 + ... + 3416473.

It is an arithmetic number, because the mean of its divisors is an integer number (99133036800).

Almost surely, 2^{1351161540556} is an apocalyptic number.

It is an amenable number.

1351161540556 is a deficient number, since it is larger than the sum of its proper divisors (1028031342644).

1351161540556 is a wasteful number, since it uses less digits than its factorization.

1351161540556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426453 (or 426451 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 43.

The spelling of 1351161540556 in words is "one trillion, three hundred fifty-one billion, one hundred sixty-one million, five hundred forty thousand, five hundred fifty-six".