1640150255 has 8 divisors (see below), whose sum is σ = 1972224672. Its totient is φ = 1309423968.

The previous prime is 1640150251. The next prime is 1640150257. The reversal of 1640150255 is 5520510461.

It is a happy number.

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 1640150255 - 2² = 1640150251 is a prime.

It is a super-3 number, since 3×1640150255³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640150251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334352 + ... + 339221.

It is an arithmetic number, because the mean of its divisors is an integer number (246528084).

Almost surely, 2^1640150255 is an apocalyptic number.

1640150255 is a deficient number, since it is larger than the sum of its proper divisors (332074417).

1640150255 is an equidigital number, since it uses as much as digits as its factorization.

1640150255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674065.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1640150255 is about 40498.7685615254. The cubic root of 1640150255 is about 1179.3097214819.

The spelling of 1640150255 in words is "one billion, six hundred forty million, one hundred fifty thousand, two hundred fifty-five".