61040102506 has 16 divisors (see below), whose sum is σ = 96393360960. Its totient is φ = 28909457280.

The previous prime is 61040102503. The next prime is 61040102521. The reversal of 61040102506 is 60520104016.

It is a super-2 number, since 2×61040102506² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61040102503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149466 + ... + 380026.

It is an arithmetic number, because the mean of its divisors is an integer number (6024585060).

Almost surely, 2^61040102506 is an apocalyptic number.

61040102506 is a deficient number, since it is larger than the sum of its proper divisors (35353258454).

61040102506 is a wasteful number, since it uses less digits than its factorization.

61040102506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237549.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 61040102506 in words is "sixty-one billion, forty million, one hundred two thousand, five hundred six".