1361216772506 has 8 divisors (see below), whose sum is σ = 2041860571104. Its totient is φ = 680596582140.

The previous prime is 1361216772493. The next prime is 1361216772523. The reversal of 1361216772506 is 6052776121631.

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

It is a super-2 number, since 2×1361216772506² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5757200 + ... + 5988971.

It is an arithmetic number, because the mean of its divisors is an integer number (255232571388).

Almost surely, 2^{1361216772506} is an apocalyptic number.

1361216772506 is a deficient number, since it is larger than the sum of its proper divisors (680643798598).

1361216772506 is a wasteful number, since it uses less digits than its factorization.

1361216772506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11804116.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 1361216772506 in words is "one trillion, three hundred sixty-one billion, two hundred sixteen million, seven hundred seventy-two thousand, five hundred six".