156969648 has 120 divisors (see below), whose sum is σ = 491124816. Its totient is φ = 46387200.

The previous prime is 156969643. The next prime is 156969649. The reversal of 156969648 is 846969651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 156969594 and 156969603.

It is not an unprimeable number, because it can be changed into a prime (156969643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63736 + ... + 66152.

Almost surely, 2^156969648 is an apocalyptic number.

156969648 is a gapful number since it is divisible by the number (18) 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 156969648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245562408).

156969648 is an abundant number, since it is smaller than the sum of its proper divisors (334155168).

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

156969648 is a wasteful number, since it uses less digits than its factorization.

156969648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483 (or 2474 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 156969648 is about 12528.7528509425. The cubic root of 156969648 is about 539.4343047130.

It can be divided in two parts, 1569 and 69648, that added together give a palindrome (71217).

The spelling of 156969648 in words is "one hundred fifty-six million, nine hundred sixty-nine thousand, six hundred forty-eight".