1361156626631 has 8 divisors (see below), whose sum is σ = 1420452718080. Its totient is φ = 1301870149272.

The previous prime is 1361156626619. The next prime is 1361156626639. The reversal of 1361156626631 is 1366266511631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361156626631 - 2¹⁰ = 1361156625607 is a prime.

It is a super-2 number, since 2×1361156626631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361156626639) 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, 2113451 + ... + 2681228.

It is an arithmetic number, because the mean of its divisors is an integer number (177556589760).

Almost surely, 2^{1361156626631} is an apocalyptic number.

1361156626631 is a deficient number, since it is larger than the sum of its proper divisors (59296091449).

1361156626631 is a wasteful number, since it uses less digits than its factorization.

1361156626631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807045.

The product of its digits is 699840, while the sum is 47.

The spelling of 1361156626631 in words is "one trillion, three hundred sixty-one billion, one hundred fifty-six million, six hundred twenty-six thousand, six hundred thirty-one".