61005156126 has 16 divisors (see below), whose sum is σ = 122089098000. Its totient is φ = 20321921088.

The previous prime is 61005156109. The next prime is 61005156143. The reversal of 61005156126 is 62165150016.

61005156126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61005156109) and next prime (61005156143).

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, 3272671 + ... + 3291258.

It is an arithmetic number, because the mean of its divisors is an integer number (7630568625).

Almost surely, 2^61005156126 is an apocalyptic number.

61005156126 is an abundant number, since it is smaller than the sum of its proper divisors (61083941874).

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

61005156126 is a wasteful number, since it uses less digits than its factorization.

61005156126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565483.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 61005156126 in words is "sixty-one billion, five million, one hundred fifty-six thousand, one hundred twenty-six".