1206174661240 has 64 divisors (see below), whose sum is σ = 2801617632000. Its totient is φ = 466876369920.

The previous prime is 1206174661207. The next prime is 1206174661249. The reversal of 1206174661240 is 421664716021.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1206174661193 and 1206174661202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206174661249) 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, 37666356 + ... + 37698364.

It is an arithmetic number, because the mean of its divisors is an integer number (43775275500).

Almost surely, 2^{1206174661240} is an apocalyptic number.

1206174661240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206174661240 is an abundant number, since it is smaller than the sum of its proper divisors (1595442970760).

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

1206174661240 is a wasteful number, since it uses less digits than its factorization.

1206174661240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62440 (or 62436 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 1206174661240 in words is "one trillion, two hundred six billion, one hundred seventy-four million, six hundred sixty-one thousand, two hundred forty".