1617170085542 has 32 divisors (see below), whose sum is σ = 2653383235104. Its totient is φ = 733104345600.

The previous prime is 1617170085491. The next prime is 1617170085593. The reversal of 1617170085542 is 2455800717161.

It is an interprime number because it is at equal distance from previous prime (1617170085491) and next prime (1617170085593).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72245192 + ... + 72267572.

It is an arithmetic number, because the mean of its divisors is an integer number (82918226097).

Almost surely, 2^{1617170085542} is an apocalyptic number.

1617170085542 is a deficient number, since it is larger than the sum of its proper divisors (1036213149562).

1617170085542 is a wasteful number, since it uses less digits than its factorization.

1617170085542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31064.

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 1617170085542 in words is "one trillion, six hundred seventeen billion, one hundred seventy million, eighty-five thousand, five hundred forty-two".