1040250155415 has 16 divisors (see below), whose sum is σ = 1665360705888. Its totient is φ = 554479930496.

The previous prime is 1040250155393. The next prime is 1040250155423. The reversal of 1040250155415 is 5145510520401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1040250155415 - 2⁸ = 1040250155159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19982664 + ... + 20034653.

It is an arithmetic number, because the mean of its divisors is an integer number (104085044118).

Almost surely, 2^{1040250155415} is an apocalyptic number.

1040250155415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1040250155415 is a deficient number, since it is larger than the sum of its proper divisors (625110550473).

1040250155415 is a wasteful number, since it uses less digits than its factorization.

1040250155415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40019058.

The product of its (nonzero) digits is 20000, while the sum is 33.

Adding to 1040250155415 its reverse (5145510520401), we get a palindrome (6185760675816).

The spelling of 1040250155415 in words is "one trillion, forty billion, two hundred fifty million, one hundred fifty-five thousand, four hundred fifteen".