61403560265406 has 16 divisors (see below), whose sum is σ = 122807446101648. Its totient is φ = 20467799160000.

The previous prime is 61403560265387. The next prime is 61403560265419. The reversal of 61403560265406 is 60456206530416.

It is a super-2 number, since 2×61403560265406² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11078545 + ... + 15669756.

It is an arithmetic number, because the mean of its divisors is an integer number (7675465381353).

Almost surely, 2^{61403560265406} is an apocalyptic number.

61403560265406 is an abundant number, since it is smaller than the sum of its proper divisors (61403885836242).

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

61403560265406 is a wasteful number, since it uses less digits than its factorization.

61403560265406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27130907.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 61403560265406 in words is "sixty-one trillion, four hundred three billion, five hundred sixty million, two hundred sixty-five thousand, four hundred six".