32140421220432 has 40 divisors (see below), whose sum is σ = 94890767413696. Its totient is φ = 9182977491456.

The previous prime is 32140421220431. The next prime is 32140421220443. The reversal of 32140421220432 is 23402212404123.

It is a super-2 number, since 2×32140421220432² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32140421220432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32140421220431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47828007433 + ... + 47828008104.

Almost surely, 2^{32140421220432} is an apocalyptic number.

It is an amenable number.

32140421220432 is an abundant number, since it is smaller than the sum of its proper divisors (62750346193264).

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

32140421220432 is a wasteful number, since it uses less digits than its factorization.

32140421220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95656015555 (or 95656015549 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 32140421220432 its reverse (23402212404123), we get a palindrome (55542633624555).

The spelling of 32140421220432 in words is "thirty-two trillion, one hundred forty billion, four hundred twenty-one million, two hundred twenty thousand, four hundred thirty-two".