126540651002136 has 128 divisors (see below), whose sum is σ = 383081083361280. Its totient is φ = 34003824316416.

The previous prime is 126540651002131. The next prime is 126540651002147. The reversal of 126540651002136 is 631200156045621.

It is a super-2 number, since 2×126540651002136² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126540651002131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11504061 + ... + 19632236.

It is an arithmetic number, because the mean of its divisors is an integer number (2992820963760).

Almost surely, 2^{126540651002136} is an apocalyptic number.

It is an amenable number.

126540651002136 is an abundant number, since it is smaller than the sum of its proper divisors (256540432359144).

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

126540651002136 is a wasteful number, since it uses less digits than its factorization.

126540651002136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31137753 (or 31137749 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 126540651002136 in words is "one hundred twenty-six trillion, five hundred forty billion, six hundred fifty-one million, two thousand, one hundred thirty-six".