21603146345032 has 128 divisors (see below), whose sum is σ = 47835531244800. Its totient is φ = 8953004971008.

The previous prime is 21603146344999. The next prime is 21603146345101. The reversal of 21603146345032 is 23054364130612.

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, 716911438 + ... + 716941570.

It is an arithmetic number, because the mean of its divisors is an integer number (373715087850).

Almost surely, 2^{21603146345032} 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 21603146345032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23917765622400).

21603146345032 is an abundant number, since it is smaller than the sum of its proper divisors (26232384899768).

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

21603146345032 is a wasteful number, since it uses less digits than its factorization.

21603146345032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32295 (or 32291 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 21603146345032 in words is "twenty-one trillion, six hundred three billion, one hundred forty-six million, three hundred forty-five thousand, thirty-two".