1617155532377 has 32 divisors (see below), whose sum is σ = 2052693826560. Its totient is φ = 1237357235520.

The previous prime is 1617155532353. The next prime is 1617155532403. The reversal of 1617155532377 is 7732355517161.

It is not a de Polignac number, because 1617155532377 - 2¹² = 1617155528281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1617155582377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3809903 + ... + 4213035.

It is an arithmetic number, because the mean of its divisors is an integer number (64146682080).

Almost surely, 2^{1617155532377} is an apocalyptic number.

It is an amenable number.

1617155532377 is a deficient number, since it is larger than the sum of its proper divisors (435538294183).

1617155532377 is a wasteful number, since it uses less digits than its factorization.

1617155532377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404093.

The product of its digits is 4630500, while the sum is 53.

The spelling of 1617155532377 in words is "one trillion, six hundred seventeen billion, one hundred fifty-five million, five hundred thirty-two thousand, three hundred seventy-seven".