32400161501 has 4 divisors (see below), whose sum is σ = 34306053372. Its totient is φ = 30494269632.

The previous prime is 32400161459. The next prime is 32400161527. The reversal of 32400161501 is 10516100423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10516100423 = 223 ⋅47157401.

It can be written as a sum of positive squares in 2 ways, for example, as 9491825476 + 22908336025 = 97426^2 + 151355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32400161501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32400161581) 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, 952945910 + ... + 952945943.

It is an arithmetic number, because the mean of its divisors is an integer number (8576513343).

Almost surely, 2^32400161501 is an apocalyptic number.

It is an amenable number.

32400161501 is a deficient number, since it is larger than the sum of its proper divisors (1905891871).

32400161501 is a wasteful number, since it uses less digits than its factorization.

32400161501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905891870.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 32400161501 its reverse (10516100423), we get a palindrome (42916261924).

The spelling of 32400161501 in words is "thirty-two billion, four hundred million, one hundred sixty-one thousand, five hundred one".