20231501736432 has 160 divisors (see below), whose sum is σ = 61664451825664. Its totient is φ = 5593370112000.

The previous prime is 20231501736389. The next prime is 20231501736461. The reversal of 20231501736432 is 23463710513202.

It is a happy number.

It is a super-2 number, since 2×20231501736432² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103030728 + ... + 103226904.

Almost surely, 2^{20231501736432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231501736432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30832225912832).

20231501736432 is an abundant number, since it is smaller than the sum of its proper divisors (41432950089232).

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

20231501736432 is a wasteful number, since it uses less digits than its factorization.

20231501736432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206127 (or 206121 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 20231501736432 in words is "twenty trillion, two hundred thirty-one billion, five hundred one million, seven hundred thirty-six thousand, four hundred thirty-two".