1655165497 has 8 divisors (see below), whose sum is σ = 1663268544. Its totient is φ = 1647079728.

The previous prime is 1655165483. The next prime is 1655165539. The reversal of 1655165497 is 7945615561.

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

It is a cyclic number.

It is not a de Polignac number, because 1655165497 - 2²³ = 1646776889 is a prime.

It is a super-3 number, since 3×1655165497³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1655165497.

It is not an unprimeable number, because it can be changed into a prime (1655165797) 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, 213898 + ... + 221500.

It is an arithmetic number, because the mean of its divisors is an integer number (207908568).

Almost surely, 2^1655165497 is an apocalyptic number.

It is an amenable number.

1655165497 is a deficient number, since it is larger than the sum of its proper divisors (8103047).

1655165497 is an equidigital number, since it uses as much as digits as its factorization.

1655165497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639.

The product of its digits is 1134000, while the sum is 49.

The square root of 1655165497 is about 40683.7252104573. The cubic root of 1655165497 is about 1182.8975751790.

The spelling of 1655165497 in words is "one billion, six hundred fifty-five million, one hundred sixty-five thousand, four hundred ninety-seven".