61050005155 has 8 divisors (see below), whose sum is σ = 75623232384. Its totient is φ = 47264520000.

The previous prime is 61050005153. The next prime is 61050005171. The reversal of 61050005155 is 55150005016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61050005155 - 2¹ = 61050005153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61050005153) 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, 196935346 + ... + 196935655.

It is an arithmetic number, because the mean of its divisors is an integer number (9452904048).

Almost surely, 2^61050005155 is an apocalyptic number.

61050005155 is a deficient number, since it is larger than the sum of its proper divisors (14573227229).

61050005155 is a wasteful number, since it uses less digits than its factorization.

61050005155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393871037.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 61050005155 in words is "sixty-one billion, fifty million, five thousand, one hundred fifty-five".