1225137738176 has 112 divisors (see below), whose sum is σ = 2697157692288. Its totient is φ = 547439692800.

The previous prime is 1225137738173. The next prime is 1225137738179. The reversal of 1225137738176 is 6718377315221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1225137738173) and next prime (1225137738179).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225137738173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86009711 + ... + 86023953.

Almost surely, 2^{1225137738176} is an apocalyptic number.

1225137738176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225137738176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1348578846144).

1225137738176 is an abundant number, since it is smaller than the sum of its proper divisors (1472019954112).

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

1225137738176 is a wasteful number, since it uses less digits than its factorization.

1225137738176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16330 (or 16320 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 53.

The spelling of 1225137738176 in words is "one trillion, two hundred twenty-five billion, one hundred thirty-seven million, seven hundred thirty-eight thousand, one hundred seventy-six".