201374456481 has 24 divisors (see below), whose sum is σ = 329069823264. Its totient is φ = 122045123520.

The previous prime is 201374456467. The next prime is 201374456537. The reversal of 201374456481 is 184654473102.

201374456481 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 7 + 4 + 4 + 564 + 81 = 666.

It is not a de Polignac number, because 201374456481 - 2¹⁵ = 201374423713 is a prime.

It is a super-2 number, since 2×201374456481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201374456281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37665576 + ... + 37670921.

It is an arithmetic number, because the mean of its divisors is an integer number (13711242636).

Almost surely, 2^201374456481 is an apocalyptic number.

It is an amenable number.

201374456481 is a deficient number, since it is larger than the sum of its proper divisors (127695366783).

201374456481 is an equidigital number, since it uses as much as digits as its factorization.

201374456481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75336523 (or 75336511 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 201374456481 in words is "two hundred one billion, three hundred seventy-four million, four hundred fifty-six thousand, four hundred eighty-one".