1617421617610 has 16 divisors (see below), whose sum is σ = 2911495895496. Its totient is φ = 646938206208.

The previous prime is 1617421617599. The next prime is 1617421617619. The reversal of 1617421617610 is 167161247161.

It can be written as a sum of positive squares in 4 ways, for example, as 705467286241 + 911954331369 = 839921^2 + 954963^2 .

It is a super-2 number, since 2×1617421617610² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1617421617619) 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, 3581319 + ... + 4007578.

Almost surely, 2^{1617421617610} is an apocalyptic number.

1617421617610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1617421617610 is a deficient number, since it is larger than the sum of its proper divisors (1294074277886).

1617421617610 is a wasteful number, since it uses less digits than its factorization.

1617421617610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7610217.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 1617421617610 in words is "one trillion, six hundred seventeen billion, four hundred twenty-one million, six hundred seventeen thousand, six hundred ten".