126201566512 has 40 divisors (see below), whose sum is σ = 279465970176. Its totient is φ = 54082583616.

The previous prime is 126201566489. The next prime is 126201566527. The reversal of 126201566512 is 215665102621.

It is a super-2 number, since 2×126201566512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051433 + ... + 2112055.

Almost surely, 2^126201566512 is an apocalyptic number.

It is an amenable number.

126201566512 is an abundant number, since it is smaller than the sum of its proper divisors (153264403664).

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

126201566512 is a wasteful number, since it uses less digits than its factorization.

126201566512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79225 (or 79219 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 126201566512 in words is "one hundred twenty-six billion, two hundred one million, five hundred sixty-six thousand, five hundred twelve".