15435402042320 has 80 divisors (see below), whose sum is σ = 39224706124800. Its totient is φ = 5614162278912.

The previous prime is 15435402042311. The next prime is 15435402042337. The reversal of 15435402042320 is 2324020453451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110689520 + ... + 110828879.

It is an arithmetic number, because the mean of its divisors is an integer number (490308826560).

Almost surely, 2^{15435402042320} is an apocalyptic number.

15435402042320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15435402042320 is an abundant number, since it is smaller than the sum of its proper divisors (23789304082480).

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

15435402042320 is a wasteful number, since it uses less digits than its factorization.

15435402042320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221518492 (or 221518486 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 15435402042320 its reverse (2324020453451), we get a palindrome (17759422495771).

The spelling of 15435402042320 in words is "fifteen trillion, four hundred thirty-five billion, four hundred two million, forty-two thousand, three hundred twenty".