1201619261376 has 896 divisors, whose sum is σ = 3942190540800. Its totient is φ = 362125209600.

The previous prime is 1201619261257. The next prime is 1201619261411. The reversal of 1201619261376 is 6731629161021.

1201619261376 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 6 + 19 + 261 + 376 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5694877911 + ... + 5694878121.

Almost surely, 2^{1201619261376} is an apocalyptic number.

1201619261376 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 1201619261376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971095270400).

1201619261376 is an abundant number, since it is smaller than the sum of its proper divisors (2740571279424).

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

1201619261376 is an equidigital number, since it uses as much as digits as its factorization.

1201619261376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 1201619261376 in words is "one trillion, two hundred one billion, six hundred nineteen million, two hundred sixty-one thousand, three hundred seventy-six".