1020504156126 has 64 divisors (see below), whose sum is σ = 2517732940800. Its totient is φ = 268530806016.

The previous prime is 1020504156107. The next prime is 1020504156143. The reversal of 1020504156126 is 6216514050201.

It is a Curzon number.

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, 1889071 + ... + 2368458.

It is an arithmetic number, because the mean of its divisors is an integer number (39339577200).

Almost surely, 2^{1020504156126} is an apocalyptic number.

1020504156126 is an abundant number, since it is smaller than the sum of its proper divisors (1497228784674).

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

1020504156126 is a wasteful number, since it uses less digits than its factorization.

1020504156126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257993.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 1020504156126 in words is "one trillion, twenty billion, five hundred four million, one hundred fifty-six thousand, one hundred twenty-six".