61265816340 has 24 divisors (see below), whose sum is σ = 171544285920. Its totient is φ = 16337551008.

The previous prime is 61265816317. The next prime is 61265816387. The reversal of 61265816340 is 4361856216.

It is a super-2 number, since 2×61265816340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61265816292 and 61265816301.

It is a congruent number.

It is an unprimeable number.

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, 510548410 + ... + 510548529.

It is an arithmetic number, because the mean of its divisors is an integer number (7147678580).

Almost surely, 2^61265816340 is an apocalyptic number.

61265816340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61265816340 is an abundant number, since it is smaller than the sum of its proper divisors (110278469580).

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

61265816340 is a wasteful number, since it uses less digits than its factorization.

61265816340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021096951 (or 1021096949 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 61265816340 in words is "sixty-one billion, two hundred sixty-five million, eight hundred sixteen thousand, three hundred forty".