20436671324 has 12 divisors (see below), whose sum is σ = 35788301304. Its totient is φ = 10211442384.

The previous prime is 20436671243. The next prime is 20436671327. The reversal of 20436671324 is 42317663402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20436671327) 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, 1716647 + ... + 1728510.

It is an arithmetic number, because the mean of its divisors is an integer number (2982358442).

Almost surely, 2^20436671324 is an apocalyptic number.

It is an amenable number.

20436671324 is a deficient number, since it is larger than the sum of its proper divisors (15351629980).

20436671324 is a wasteful number, since it uses less digits than its factorization.

20436671324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446644 (or 3446642 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 20436671324 in words is "twenty billion, four hundred thirty-six million, six hundred seventy-one thousand, three hundred twenty-four".