1023164032440 has 128 divisors (see below), whose sum is σ = 3464003750400. Its totient is φ = 239486661120.

The previous prime is 1023164032427. The next prime is 1023164032463. The reversal of 1023164032440 is 442304613201.

1023164032440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1023164032398 and 1023164032407.

It is a congruent number.

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, 13325932 + ... + 13402491.

It is an arithmetic number, because the mean of its divisors is an integer number (27062529300).

Almost surely, 2^{1023164032440} is an apocalyptic number.

1023164032440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023164032440 is an abundant number, since it is smaller than the sum of its proper divisors (2440839717960).

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

1023164032440 is a wasteful number, since it uses less digits than its factorization.

1023164032440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26728477 (or 26728473 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1023164032440 its reverse (442304613201), we get a palindrome (1465468645641).

The spelling of 1023164032440 in words is "one trillion, twenty-three billion, one hundred sixty-four million, thirty-two thousand, four hundred forty".