1361257625560 has 64 divisors (see below), whose sum is σ = 3506340337920. Its totient is φ = 465921755520.

The previous prime is 1361257625543. The next prime is 1361257625603. The reversal of 1361257625560 is 655267521631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3976726 + ... + 4305445.

It is an arithmetic number, because the mean of its divisors is an integer number (54786567780).

Almost surely, 2^{1361257625560} is an apocalyptic number.

1361257625560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361257625560 is an abundant number, since it is smaller than the sum of its proper divisors (2145082712360).

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

1361257625560 is a wasteful number, since it uses less digits than its factorization.

1361257625560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282776 (or 8282772 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 1361257625560 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-seven million, six hundred twenty-five thousand, five hundred sixty".