125561201070 has 32 divisors (see below), whose sum is σ = 301645614240. Its totient is φ = 33449794560.

The previous prime is 125561201063. The next prime is 125561201093. The reversal of 125561201070 is 70102165521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043751 + ... + 2104290.

It is an arithmetic number, because the mean of its divisors is an integer number (9426425445).

Almost surely, 2^125561201070 is an apocalyptic number.

125561201070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125561201070 is an abundant number, since it is smaller than the sum of its proper divisors (176084413170).

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

125561201070 is a wasteful number, since it uses less digits than its factorization.

125561201070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149060.

The product of its (nonzero) digits is 4200, while the sum is 30.

Adding to 125561201070 its reverse (70102165521), we get a palindrome (195663366591).

The spelling of 125561201070 in words is "one hundred twenty-five billion, five hundred sixty-one million, two hundred one thousand, seventy".