61017570103 has 16 divisors (see below), whose sum is σ = 72180097024. Its totient is φ = 50475674880.

The previous prime is 61017570043. The next prime is 61017570209. The reversal of 61017570103 is 30107571016.

It is a cyclic number.

It is not a de Polignac number, because 61017570103 - 2¹⁷ = 61017439031 is a prime.

It is a super-2 number, since 2×61017570103² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61017570703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303450 + ... + 462727.

It is an arithmetic number, because the mean of its divisors is an integer number (4511256064).

Almost surely, 2^61017570103 is an apocalyptic number.

61017570103 is a deficient number, since it is larger than the sum of its proper divisors (11162526921).

61017570103 is a wasteful number, since it uses less digits than its factorization.

61017570103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766582.

The product of its (nonzero) digits is 4410, while the sum is 31.

The spelling of 61017570103 in words is "sixty-one billion, seventeen million, five hundred seventy thousand, one hundred three".