100433640261 has 16 divisors (see below), whose sum is σ = 136836071424. Its totient is φ = 65495055024.

The previous prime is 100433640227. The next prime is 100433640277. The reversal of 100433640261 is 162046334001.

It is not a de Polignac number, because 100433640261 - 2³⁵ = 66073901893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100433640211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61680 + ... + 452406.

It is an arithmetic number, because the mean of its divisors is an integer number (8552254464).

Almost surely, 2^100433640261 is an apocalyptic number.

It is an amenable number.

100433640261 is a deficient number, since it is larger than the sum of its proper divisors (36402431163).

100433640261 is a wasteful number, since it uses less digits than its factorization.

100433640261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392600.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 100433640261 its reverse (162046334001), we get a palindrome (262479974262).

The spelling of 100433640261 in words is "one hundred billion, four hundred thirty-three million, six hundred forty thousand, two hundred sixty-one".