61005051126 has 16 divisors (see below), whose sum is σ = 135566780400. Its totient is φ = 20335017024.

The previous prime is 61005051113. The next prime is 61005051131. The reversal of 61005051126 is 62115050016.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 61005051126.

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, 564861531 + ... + 564861638.

It is an arithmetic number, because the mean of its divisors is an integer number (8472923775).

Almost surely, 2^61005051126 is an apocalyptic number.

61005051126 is an abundant number, since it is smaller than the sum of its proper divisors (74561729274).

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

61005051126 is a wasteful number, since it uses less digits than its factorization.

61005051126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129723180 (or 1129723174 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 61005051126 in words is "sixty-one billion, five million, fifty-one thousand, one hundred twenty-six".