20944153498 has 8 divisors (see below), whose sum is σ = 31417027092. Its totient is φ = 10471811136.

The previous prime is 20944153393. The next prime is 20944153499. The reversal of 20944153498 is 89435144902.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19942241089 + 1001912409 = 141217^2 + 31653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20944153499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12415 + ... + 205042.

Almost surely, 2^20944153498 is an apocalyptic number.

20944153498 is a deficient number, since it is larger than the sum of its proper divisors (10472873594).

20944153498 is a wasteful number, since it uses less digits than its factorization.

20944153498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265616.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 20944153498 in words is "twenty billion, nine hundred forty-four million, one hundred fifty-three thousand, four hundred ninety-eight".