1941555655 has 24 divisors (see below), whose sum is σ = 2609902080. Its totient is φ = 1384306560.

The previous prime is 1941555653. The next prime is 1941555673. The reversal of 1941555655 is 5565551491.

It is not a de Polignac number, because 1941555655 - 2¹ = 1941555653 is a prime.

It is a super-2 number, since 2×1941555655² = 7539276722924958050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941555653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15111 + ... + 64120.

It is an arithmetic number, because the mean of its divisors is an integer number (108745920).

Almost surely, 2^1941555655 is an apocalyptic number.

1941555655 is a deficient number, since it is larger than the sum of its proper divisors (668346425).

1941555655 is a wasteful number, since it uses less digits than its factorization.

1941555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79291 (or 79278 counting only the distinct ones).

The product of its digits is 675000, while the sum is 46.

The square root of 1941555655 is about 44063.0872159453. The cubic root of 1941555655 is about 1247.5269836453.

The spelling of 1941555655 in words is "one billion, nine hundred forty-one million, five hundred fifty-five thousand, six hundred fifty-five".