1655040097 has 8 divisors (see below), whose sum is σ = 1683598400. Its totient is φ = 1626595344.

The previous prime is 1655040091. The next prime is 1655040103. The reversal of 1655040097 is 7900405561.

It is an interprime number because it is at equal distance from previous prime (1655040091) and next prime (1655040103).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1655040097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655040091) 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, 1279 + ... + 57547.

It is an arithmetic number, because the mean of its divisors is an integer number (210449800).

Almost surely, 2^1655040097 is an apocalyptic number.

It is an amenable number.

1655040097 is a deficient number, since it is larger than the sum of its proper divisors (28558303).

1655040097 is an equidigital number, since it uses as much as digits as its factorization.

1655040097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56775.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1655040097 is about 40682.1840244597. The cubic root of 1655040097 is about 1182.8677012072.

The spelling of 1655040097 in words is "one billion, six hundred fifty-five million, forty thousand, ninety-seven".