126424561505 has 32 divisors (see below), whose sum is σ = 168937705728. Its totient is φ = 90042451200.

The previous prime is 126424561457. The next prime is 126424561547. The reversal of 126424561505 is 505165424621.

It is not a de Polignac number, because 126424561505 - 2¹⁸ = 126424299361 is a prime.

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, 1536932 + ... + 1617098.

It is an arithmetic number, because the mean of its divisors is an integer number (5279303304).

Almost surely, 2^126424561505 is an apocalyptic number.

It is an amenable number.

126424561505 is a deficient number, since it is larger than the sum of its proper divisors (42513144223).

126424561505 is a wasteful number, since it uses less digits than its factorization.

126424561505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80777.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 126424561505 in words is "one hundred twenty-six billion, four hundred twenty-four million, five hundred sixty-one thousand, five hundred five".