1641264162498 has 64 divisors (see below), whose sum is σ = 3839606592000. Its totient is φ = 518241002832.

The previous prime is 1641264162493. The next prime is 1641264162509. The reversal of 1641264162498 is 8942614621461.

1641264162498 is a `hidden beast` number, since 1 + 6 + 4 + 1 + 2 + 6 + 4 + 1 + 624 + 9 + 8 = 666.

It is a super-2 number, since 2×1641264162498² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1641264162493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10654461 + ... + 10807407.

It is an arithmetic number, because the mean of its divisors is an integer number (59993853000).

Almost surely, 2^{1641264162498} is an apocalyptic number.

1641264162498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1641264162498 is an abundant number, since it is smaller than the sum of its proper divisors (2198342429502).

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

1641264162498 is a wasteful number, since it uses less digits than its factorization.

1641264162498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163436 (or 163430 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 1641264162498 in words is "one trillion, six hundred forty-one billion, two hundred sixty-four million, one hundred sixty-two thousand, four hundred ninety-eight".