61365507340 has 24 divisors (see below), whose sum is σ = 128943042480. Its totient is φ = 24531826368.

The previous prime is 61365507319. The next prime is 61365507341. The reversal of 61365507340 is 4370556316.

It is a junction number, because it is equal to n+sod(n) for n = 61365507293 and 61365507302.

It is not an unprimeable number, because it can be changed into a prime (61365507341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863502 + ... + 931861.

It is an arithmetic number, because the mean of its divisors is an integer number (5372626770).

Almost surely, 2^61365507340 is an apocalyptic number.

It is an amenable number.

61365507340 is an abundant number, since it is smaller than the sum of its proper divisors (67577535140).

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

61365507340 is a wasteful number, since it uses less digits than its factorization.

61365507340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797081 (or 1797079 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 61365507340 in words is "sixty-one billion, three hundred sixty-five million, five hundred seven thousand, three hundred forty".