1655540867 has 8 divisors (see below), whose sum is σ = 1679553792. Its totient is φ = 1631547400.

The previous prime is 1655540857. The next prime is 1655540891. The reversal of 1655540867 is 7680455561.

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 1655540867 - 2⁸ = 1655540611 is a prime.

It is a super-2 number, since 2×1655540867² = 5481631124614223378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655540837) 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, 337442 + ... + 342312.

It is an arithmetic number, because the mean of its divisors is an integer number (209944224).

Almost surely, 2^1655540867 is an apocalyptic number.

1655540867 is a deficient number, since it is larger than the sum of its proper divisors (24012925).

1655540867 is an equidigital number, since it uses as much as digits as its factorization.

1655540867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9729.

The product of its (nonzero) digits is 1008000, while the sum is 47.

The square root of 1655540867 is about 40688.3382187083. The cubic root of 1655540867 is about 1182.9869903466.

The spelling of 1655540867 in words is "one billion, six hundred fifty-five million, five hundred forty thousand, eight hundred sixty-seven".