245227163940 has 144 divisors (see below), whose sum is σ = 831271424256. Its totient is φ = 57999014400.

The previous prime is 245227163927. The next prime is 245227163957. The reversal of 245227163940 is 49361722542.

245227163940 is a `hidden beast` number, since 2 + 4 + 5 + 2 + 2 + 7 + 1 + 639 + 4 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1429212 + ... + 1591571.

It is an arithmetic number, because the mean of its divisors is an integer number (5772718224).

Almost surely, 2^245227163940 is an apocalyptic number.

245227163940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245227163940 is an abundant number, since it is smaller than the sum of its proper divisors (586044260316).

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

245227163940 is a wasteful number, since it uses less digits than its factorization.

245227163940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020850 (or 3020845 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 245227163940 in words is "two hundred forty-five billion, two hundred twenty-seven million, one hundred sixty-three thousand, nine hundred forty".