155001510040 has 64 divisors (see below), whose sum is σ = 384315069600. Its totient is φ = 55900357632.

The previous prime is 155001510031. The next prime is 155001510073. The reversal of 155001510040 is 40015100551.

It is a happy number.

It is a super-2 number, since 2×155001510040² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155001509993 and 155001510020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3443685 + ... + 3488404.

Almost surely, 2^155001510040 is an apocalyptic number.

155001510040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155001510040 is an abundant number, since it is smaller than the sum of its proper divisors (229313559560).

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

155001510040 is a wasteful number, since it uses less digits than its factorization.

155001510040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932156 (or 6932152 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 155001510040 its reverse (40015100551), we get a palindrome (195016610591).

The spelling of 155001510040 in words is "one hundred fifty-five billion, one million, five hundred ten thousand, forty".