61456361500063 has 16 divisors (see below), whose sum is σ = 66850649750304. Its totient is φ = 56267894256640.

The previous prime is 61456361500007. The next prime is 61456361500067. The reversal of 61456361500063 is 36000516365416.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61456361500063 - 2¹⁷ = 61456361368991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61456361499986 and 61456361500022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61456361500067) 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, 126808120 + ... + 127291837.

It is an arithmetic number, because the mean of its divisors is an integer number (4178165609394).

Almost surely, 2^{61456361500063} is an apocalyptic number.

61456361500063 is a deficient number, since it is larger than the sum of its proper divisors (5394288250241).

61456361500063 is a wasteful number, since it uses less digits than its factorization.

61456361500063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254100362.

The product of its (nonzero) digits is 1166400, while the sum is 46.

Adding to 61456361500063 its reverse (36000516365416), we get a palindrome (97456877865479).

The spelling of 61456361500063 in words is "sixty-one trillion, four hundred fifty-six billion, three hundred sixty-one million, five hundred thousand, sixty-three".