1641295155 has 32 divisors (see below), whose sum is σ = 2714757120. Its totient is φ = 845879040.

The previous prime is 1641295133. The next prime is 1641295163. The reversal of 1641295155 is 5515921461.

It is not a de Polignac number, because 1641295155 - 2⁶ = 1641295091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 374004 + ... + 378366.

It is an arithmetic number, because the mean of its divisors is an integer number (84836160).

Almost surely, 2^1641295155 is an apocalyptic number.

1641295155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1641295155 is a deficient number, since it is larger than the sum of its proper divisors (1073461965).

1641295155 is a wasteful number, since it uses less digits than its factorization.

1641295155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211.

The product of its digits is 54000, while the sum is 39.

The square root of 1641295155 is about 40512.9010933554. The cubic root of 1641295155 is about 1179.5840617245.

The spelling of 1641295155 in words is "one billion, six hundred forty-one million, two hundred ninety-five thousand, one hundred fifty-five".