61501341603313 has 16 divisors (see below), whose sum is σ = 61703545966416. Its totient is φ = 61299502387200.

The previous prime is 61501341603301. The next prime is 61501341603337. The reversal of 61501341603313 is 31330614310516.

It can be written as a sum of positive squares in 8 ways, for example, as 29295069650064 + 32206271953249 = 5412492^2 + 5675057^2 .

It is a cyclic number.

It is not a de Polignac number, because 61501341603313 - 2⁵ = 61501341603281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61501341603413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3360536263 + ... + 3360554563.

It is an arithmetic number, because the mean of its divisors is an integer number (3856471622901).

Almost surely, 2^{61501341603313} is an apocalyptic number.

It is an amenable number.

61501341603313 is a deficient number, since it is larger than the sum of its proper divisors (202204363103).

61501341603313 is a wasteful number, since it uses less digits than its factorization.

61501341603313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27684.

The product of its (nonzero) digits is 58320, while the sum is 37.

Adding to 61501341603313 its reverse (31330614310516), we get a palindrome (92831955913829).

The spelling of 61501341603313 in words is "sixty-one trillion, five hundred one billion, three hundred forty-one million, six hundred three thousand, three hundred thirteen".