20444036151 has 32 divisors (see below), whose sum is σ = 35462504448. Its totient is φ = 10158524640.

The previous prime is 20444036083. The next prime is 20444036153. The reversal of 20444036151 is 15163044402.

It is not a de Polignac number, because 20444036151 - 2¹⁰ = 20444035127 is a prime.

It is a super-2 number, since 2×20444036151² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444036153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1918651 + ... + 1929276.

It is an arithmetic number, because the mean of its divisors is an integer number (1108203264).

Almost surely, 2^20444036151 is an apocalyptic number.

20444036151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20444036151 is a deficient number, since it is larger than the sum of its proper divisors (15018468297).

20444036151 is a wasteful number, since it uses less digits than its factorization.

20444036151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847971.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 20444036151 in words is "twenty billion, four hundred forty-four million, thirty-six thousand, one hundred fifty-one".