126401633140 has 48 divisors (see below), whose sum is σ = 279840056832. Its totient is φ = 47863766016.

The previous prime is 126401633047. The next prime is 126401633177. The reversal of 126401633140 is 41336104621.

It is a happy number.

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, 1371804 + ... + 1461043.

It is an arithmetic number, because the mean of its divisors is an integer number (5830001184).

Almost surely, 2^126401633140 is an apocalyptic number.

126401633140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126401633140 is an abundant number, since it is smaller than the sum of its proper divisors (153438423692).

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

126401633140 is a wasteful number, since it uses less digits than its factorization.

126401633140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832976 (or 2832974 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 126401633140 its reverse (41336104621), we get a palindrome (167737737761).

The spelling of 126401633140 in words is "one hundred twenty-six billion, four hundred one million, six hundred thirty-three thousand, one hundred forty".