125156012240 has 160 divisors (see below), whose sum is σ = 344300820480. Its totient is φ = 41397737472.

The previous prime is 125156012209. The next prime is 125156012257. The reversal of 125156012240 is 42210651521.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 28141697 + ... + 28146143.

It is an arithmetic number, because the mean of its divisors is an integer number (2151880128).

Almost surely, 2^125156012240 is an apocalyptic number.

125156012240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125156012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172150410240).

125156012240 is an abundant number, since it is smaller than the sum of its proper divisors (219144808240).

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

125156012240 is a wasteful number, since it uses less digits than its factorization.

125156012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229 (or 6223 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 125156012240 its reverse (42210651521), we get a palindrome (167366663761).

The spelling of 125156012240 in words is "one hundred twenty-five billion, one hundred fifty-six million, twelve thousand, two hundred forty".