1641101436 has 72 divisors (see below), whose sum is σ = 4611594624. Its totient is φ = 488661120.

The previous prime is 1641101431. The next prime is 1641101437. The reversal of 1641101436 is 6341011461.

1641101436 is a `hidden beast` number, since 1 + 641 + 1 + 0 + 14 + 3 + 6 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641101431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42051 + ... + 71066.

Almost surely, 2^1641101436 is an apocalyptic number.

It is an amenable number.

1641101436 is an abundant number, since it is smaller than the sum of its proper divisors (2970493188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1641101436 is a wasteful number, since it uses less digits than its factorization.

1641101436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113171 (or 113166 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1641101436 is about 40510.5101918008. The cubic root of 1641101436 is about 1179.5376518644.

Adding to 1641101436 its reverse (6341011461), we get a palindrome (7982112897).

The spelling of 1641101436 in words is "one billion, six hundred forty-one million, one hundred one thousand, four hundred thirty-six".