126136551161552 has 160 divisors (see below), whose sum is σ = 259913781953280. Its totient is φ = 59134508421120.

The previous prime is 126136551161527. The next prime is 126136551161587. The reversal of 126136551161552 is 255161155631621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126136551161552.

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, 11285361788 + ... + 11285372964.

It is an arithmetic number, because the mean of its divisors is an integer number (1624461137208).

Almost surely, 2^{126136551161552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126136551161552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129956890976640).

126136551161552 is an abundant number, since it is smaller than the sum of its proper divisors (133777230791728).

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

126136551161552 is a wasteful number, since it uses less digits than its factorization.

126136551161552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12349 (or 12343 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 50.

The spelling of 126136551161552 in words is "one hundred twenty-six trillion, one hundred thirty-six billion, five hundred fifty-one million, one hundred sixty-one thousand, five hundred fifty-two".