276156147420 has 384 divisors, whose sum is σ = 964451819520. Its totient is φ = 65258680320.

The previous prime is 276156147419. The next prime is 276156147473. The reversal of 276156147420 is 24741651672.

276156147420 is a `hidden beast` number, since 2 + 7 + 6 + 1 + 5 + 614 + 7 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 10516347 + ... + 10542573.

It is an arithmetic number, because the mean of its divisors is an integer number (2511593280).

Almost surely, 2^276156147420 is an apocalyptic number.

276156147420 is a gapful number since it is divisible by the number (20) 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 276156147420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482225909760).

276156147420 is an abundant number, since it is smaller than the sum of its proper divisors (688295672100).

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

276156147420 is a wasteful number, since it uses less digits than its factorization.

276156147420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26330 (or 26322 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 276156147420 in words is "two hundred seventy-six billion, one hundred fifty-six million, one hundred forty-seven thousand, four hundred twenty".