1662366552 has 192 divisors, whose sum is σ = 5327648640. Its totient is φ = 427392000.

The previous prime is 1662366533. The next prime is 1662366553. The reversal of 1662366552 is 2556632661.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662366553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1383552 + ... + 1384752.

It is an arithmetic number, because the mean of its divisors is an integer number (27748170).

Almost surely, 2^1662366552 is an apocalyptic number.

1662366552 is a gapful number since it is divisible by the number (12) 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 1662366552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2663824320).

1662366552 is an abundant number, since it is smaller than the sum of its proper divisors (3665282088).

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

1662366552 is a wasteful number, since it uses less digits than its factorization.

1662366552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1331 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 1662366552 is about 40772.1295985383. The cubic root of 1662366552 is about 1184.6105533602.

The spelling of 1662366552 in words is "one billion, six hundred sixty-two million, three hundred sixty-six thousand, five hundred fifty-two".